Lock for cross-chains



I 3mm Patented May 31, 1921 W H COOK LOCK FOR CROSS CHAINS. APPLICATION man AUG. 31. M520.

wi/bneoo UNITEDESTATES P? ATENT QFF -Q P 1 WI L AM HENRY cook, on LEE, ivmssaonosnims.

Loon non cnoss-onnms.

Specification of Letters Patent.

Patented nay 31' 1,921.

Application filed August'31, 1920. Serial No. 407,115;

To all whom itmag aoncev'n: 1

Beit known that'I, WILLIAM I-L COOK, a citizen of the United States, residing at Lee, in the county of Berkshire and the" State of Massachusetts,jhave' invented ,a; newand zuseful Lock for Cross-Chains, of which the following is a specification.

The object of my invention is to provide a very simple but efiicient lock for cross chainsfor automobile tires which may be locked by means of a cotter pin, andto provide means. for adjustment in such a device.

. I attain the objects ofimy invention by the illustration in the accompanying drawings, in which: l

. Figure 1 is aside elevationv of the invention applied to an] automobile tire and cross chain; p

Fig. 2 is a detailed view, partly in-elevation and partly in section, of the device in unlocked position;

Fig. 3 is a section on line 3-3 ofFigq l; Fig. 4 is a section on line 4 4-of Fig. 1:

and V Fig. 5 is a bottom plan view of the device. Like numerals designate like parts in each i of the several views.

Referring to the accompanying drawings I provide a lock plate 1, having spaced slots 4 either'of which is adapted to receive the end linkof a cross chain, and having an up- I per extension 7, provided with an aperture 8. Ijfurther provide a lockplate cover 2,

of U-shape in crosss section and pivoted to plate 1 by pivot 3.1 This plate is-provided with a slot 6 positioned'toreceive the ex;

tension7. .When the outer, plate 2 is closed over the inner plate 1,; andwhen slots 5 cor-. responding in position to slots 40f plate 1,

the respective slots being of such size as to {leave an approximately round opening: through both plates when they are closed plates, as shown in Fig. 1. iv

or overlapping position. In Fig. 4 the cot ter pin 9' may be inserted through the aperture 8 of lock? and thus securely fasten the plate 2 in place, thus holdingthe "end link of the cross chain engaged in one'of the openings left'bv slots 4 and 5 of the The operation of the device wil'lbejapparnection with'the foregoing 'des respective? V 550 3 I I ent from the accompanying'drawings inconf cription of its construction. Slots 4 are provided to give a 1 means of adjustment to suittires ofdifi'e'rentsizes to which the cross chain'may be apphed.

What I claim is': 1

1. In a lock for cross chains, the combina tion, of .interengaging: pivotedplates, the a outer plate being 'U-shaped in cross'section,

each of the plates having overlapping trans-i Y 4 verse slots, theouter-platehavinga central slot,"the inner plate havingja perforated 1 projection shaped to pass through said cen-;

tral slot, and fastening means for said plates,

said means comprising'a cotter pininsertible v,

perforated projection named,

through the substantially'as and for thepurpos'e's def,

. scribed.

2. Ina lock for cross chains,thecombinarelation the transverse slots provide an open shown.

WILLIAM HENRYCOOKQ 7 i I 

